CA2531993A1 - Security element for radio frequency identification - Google Patents

Security element for radio frequency identification Download PDF

Info

Publication number
CA2531993A1
CA2531993A1 CA002531993A CA2531993A CA2531993A1 CA 2531993 A1 CA2531993 A1 CA 2531993A1 CA 002531993 A CA002531993 A CA 002531993A CA 2531993 A CA2531993 A CA 2531993A CA 2531993 A1 CA2531993 A1 CA 2531993A1
Authority
CA
Canada
Prior art keywords
security element
element according
conductive layer
relief structure
electrically conductive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002531993A
Other languages
French (fr)
Other versions
CA2531993C (en
Inventor
Norbert Lutz
John Anthony Peters
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
OVD Kinegram AG
Original Assignee
Ovd Kinegram Ag
Norbert Lutz
John Anthony Peters
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ovd Kinegram Ag, Norbert Lutz, John Anthony Peters filed Critical Ovd Kinegram Ag
Publication of CA2531993A1 publication Critical patent/CA2531993A1/en
Application granted granted Critical
Publication of CA2531993C publication Critical patent/CA2531993C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G06K19/07773—Antenna details
    • G06K19/07777—Antenna details the antenna being of the inductive type
    • G06K19/07779—Antenna details the antenna being of the inductive type the inductive antenna being a coil
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G06K19/07773—Antenna details
    • G06K19/07777—Antenna details the antenna being of the inductive type
    • G06K19/07779—Antenna details the antenna being of the inductive type the inductive antenna being a coil
    • G06K19/07783—Antenna details the antenna being of the inductive type the inductive antenna being a coil the coil being planar

Abstract

The invention relates to a security element (2), for radio frequency identification, as well as to a method for producing said security element.
The security element comprises a flexible, electrically non-conductive substrate layer (24) and a conductive layer (29) applied on the substrate layer, said conductive layer being made of an electrically conductive material and shaped, in a first surface area of the substrate layer according to a pattern, to form a radio frequency component. In the surface area which is associated with the RF component, a first relief structure (27) is formed in the first conductive layer (29), at least in sections thereof.

Claims (22)

1. A security element (1, 2, 7, 8) for RF identification, wherein the security element has a flexible, electrically non-conducting substrate layer (11, 24, 74) and a first electrically conductive layer (29, 73) of an electrically conducting material which is applied to the substrate layer and which in a first surface region (4, 51, 53, 63, 64, 65) is shaped out in pattern form to form an RF component (12, 13, 72, 70, 81) characterised in that a first relief structure (27, 28, 60, 78) is shaped at least in region-wise manner in the surface region, associated with the RF component, in the first electrically conductive layer (29, 73).
2. A security element according to claim 1 characterised in that a first relief structure (27, 28, 60, 78) for altering the electrical properties of the RF component is shaped at least in region-wise manner in the surface region, associated with the RF component, in the first electrically conductive layer (29, 73).
3. A security element according to claim 1 or claim 2 characterised in that the substrate (24) is a replication layer and the first relief structure (27) is shaped in the surface of the replication layer (27) which is towards the first electrically conductive layer.
4. A security element according to one of the preceding claims characterised in that the first electrically conductive layer (29) is a metal layer applied to the substrate layer (24).
5. A security element according to one of the preceding claims characterised in that the first electrically conductive layer (29, 73) is of a thickness in the range of 50 nm to 50 µm, preferably 1 to 10 µm.
6. A security element according to one of the preceding claims characterised in that the first electrically conductive layer (29) is shaped out in the first surface region (2, 51, 53, 63 to 65) in the form of an RF
antenna (12) or a coil and that in the region of the conductive layer (29) which is associated with the RF antenna or the coil the grooves of the relief structure (27, 60) are oriented on average more longitudinally relative to the direction of flow of the electric current than transversely with respect to the direction of flow of the electric current.
7. A security element according to claim 6 characterised in that the grooves of the relief structure (27) in the region of the electrically conductive layer which is associated with the RF antenna or coil are oriented longitudinally with respect to the direction of flow of the electric current.
8. A security element according to claim 6 or claim 7 characterised in that the first electrically conductive layer (29) in the first surface region (2) is shaped out in the form of one or more conductor tracks of a width of 50 µm to 10 mm, preferably 100 µm.
9. A security element according to one of the preceding claims characterised in that the security element has a second electrically conductive layer (76) and that the first and the second electrically conductive layers (73, 76) form a capacitive element (70) in the first surface region.
10. A security element according to claim 9 characterised in that a second relief structure (7) is shaped at least in region-wise manner in the surface region associated with the capacitive element (70) in the second conductive layer (76).
11. A security element according to claim 9 or claim 10 characterised in that the first relief structure (78) has a plurality of mutually crossing grooves.
12. A security element according to one of the preceding claims characterised in that the first relief structure has a profile depth in the range of 50 nm to 10 µm.
13. A security element according to one of the preceding claims characterised in that the relief structure has a spatial frequency in the range of 100 to 2000 lines per mm.
14. A security element according to one of the preceding claims characterised in that the relief structure (27) is of a sawtooth, triangular, rectangular or sine profile.
15. An optical security element according to one of the preceding claims characterised in that the first relief structure (60) is formed from the superimposition of a coarse structure and a fine structure.
16. A security element according to one of the preceding claims characterised in that the first relief structure additionally produces an optical security feature.
17. A security element according to one of the preceding claims characterised in that the security element has a resonance circuit for RF
identification.
18. A security element according to one of the preceding claims characterised in that the security element has a chip.
19. A security element according to one of the preceding claims characterised in that the security element is a film element, in particular a stamping film, a laminating film, a sticker film or a partial element of a transfer layer portion of such a film.
20. A process for the production of a security element for RF
identification, wherein in the process a first conductive layer (29) of an electrically conducting material shaped out in pattern form to form an RF
component (12) is applied to a flexible, electrically non-conducting substrate layer (24) in a first surface region of the substrate layer, characterised in that a first relief structure (27) for altering electrical properties of the RF component is shaped at least in region-wise manner in the surface region (2) associated with the RF component in the first conductive layer (29).
21. A process according to claim 20 characterised in that the first conductive layer (29) is applied to the substrate layer over the full surface area, for example by vapour deposition, and then partially demetallised in pattern form to form the RF component (12).
22. A process according to claim 20 or claim 21 characterised in that two or more capacitive partial elements connected with connecting tracks are shaped out in the first conductive layer and that connecting tracks to capacitive partial elements are later severed for fine tuning of the resonance frequency.
CA2531993A 2003-07-23 2004-07-16 Security element for radio frequency identification Expired - Fee Related CA2531993C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10333704A DE10333704B4 (en) 2003-07-23 2003-07-23 Security element for RF identification
DE10333704.0 2003-07-23
PCT/EP2004/007970 WO2005010809A1 (en) 2003-07-23 2004-07-16 Security element for radio frequency identification

Publications (2)

Publication Number Publication Date
CA2531993A1 true CA2531993A1 (en) 2005-02-03
CA2531993C CA2531993C (en) 2012-02-21

Family

ID=34088794

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2531993A Expired - Fee Related CA2531993C (en) 2003-07-23 2004-07-16 Security element for radio frequency identification

Country Status (14)

Country Link
US (1) US7425894B2 (en)
EP (1) EP1646969B1 (en)
JP (1) JP4723492B2 (en)
KR (1) KR100801788B1 (en)
CN (1) CN100407227C (en)
AT (1) ATE371225T1 (en)
AU (1) AU2004259444B2 (en)
BR (1) BRPI0412258A (en)
CA (1) CA2531993C (en)
DE (2) DE10333704B4 (en)
ES (1) ES2291892T3 (en)
RU (1) RU2332714C2 (en)
TW (1) TWI346303B (en)
WO (1) WO2005010809A1 (en)

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JP4815891B2 (en) * 2005-06-22 2011-11-16 株式会社日立製作所 Wireless IC tag and antenna manufacturing method
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JP2015029031A (en) * 2013-07-02 2015-02-12 株式会社リコー Wiring board and wiring board manufacturing method
US9761945B2 (en) * 2013-10-18 2017-09-12 Taoglas Group Holdings Limited Ultra-low profile monopole antenna for 2.4GHz band
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Also Published As

Publication number Publication date
DE502004004748D1 (en) 2007-10-04
DE10333704B4 (en) 2009-12-17
RU2006105654A (en) 2006-08-27
BRPI0412258A (en) 2006-09-19
JP4723492B2 (en) 2011-07-13
EP1646969B1 (en) 2007-08-22
TWI346303B (en) 2011-08-01
KR100801788B1 (en) 2008-02-05
CN100407227C (en) 2008-07-30
KR20060056950A (en) 2006-05-25
ES2291892T3 (en) 2008-03-01
ATE371225T1 (en) 2007-09-15
WO2005010809A1 (en) 2005-02-03
US7425894B2 (en) 2008-09-16
AU2004259444B2 (en) 2009-07-09
RU2332714C2 (en) 2008-08-27
CA2531993C (en) 2012-02-21
DE10333704A1 (en) 2005-04-14
TW200511134A (en) 2005-03-16
CN1826607A (en) 2006-08-30
JP2006528380A (en) 2006-12-14
EP1646969A1 (en) 2006-04-19
US20060164249A1 (en) 2006-07-27
AU2004259444A1 (en) 2005-02-03

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Effective date: 20160718